Changes:
Features: HiBench is now fully integrated with CBTOOL. Unfortunately,
 it required some changes on the HiBench code. I've already requested 
the incorporation of the changes in the "public" HiBench code, 
but meanwhile there is a forked version in https://github.com/ibmcb/HiBench.git
Bugfix: More changes to the submiter code, in order to make it more
resistant to "missed deadlines" when the inter-arrival time is too
small. This is now fixed with a higher frequency timer (100 ms interval)
Bugfix: In clouds where the VMs have multiple IP addresses, the old
method used by CloudBench to determine the IP (by looking at the
interface that was used by the default route) is no longer valid. 
Now, every VM has its (CBTOOL) UUID injected on it (through the 
normal rsync channel) and then uses this information to reach out 
to the Object Store and query which IP should be effectively used.
Code Maintenance: Added a new example code (python) using the CloudBench
API to show how to keep a cloud load between a specific range (e.g., 60% and 80%)
Code Maintenance: Just included functional examples in Java and Python
for Host Discovery through the API
Code Maintenance: Now all pdf graphs produced by cbplot are also
collated into a single file (all_plots.pdf) for easier visualization.